Wiring 4-pin BA radiator fan assy to BF 3-pin connector

[Baton4ik]

Hi there,

I am not a fully technical person and also not very familiar with the jargon so will try to explain in simple words:

My Falcon BF had an unpleasant meeting with small kangaroo and damaged the radiator, air condenser and fan assembly.
I have got all required parts but for some reason decided to buy BA double fan assembly as I thought it will be more effective for cooling.

The problem here is:
Original fan has got 3-pin connector while new fan assy has got 4 pin one.

out of 3 wires of the old fan I deducted:
1 black (from the battery)
2 reds (1st, 2nd fan speeds)

out of 4 wires I assume:
2 blacks (from the battery feed)
2 reds (engage 1 or 2 fans)

I am contemplating of forking 1 original black wire into 2 black ones and connect it as below:
1 black to 2 blacks
2 reds to 2 reds

Will there be an issue with fuses on using this custom wiring?
Any other thoughts, ideas are appreciated.

Thanks
Max

[VZTRT]

Pretty sure there is an extra relay for the second fan (thats controlled by the ECU btw).

If you don't have a schematic and aren't sure what your doing then get someone who does.